Maine's Platner faces test as four US states hold midterm primary votes

Four US states (Maine, South Carolina, North Dakota, and Nevada) hold primary votes on Tuesday for the November midterm elections. In Maine, Democratic candidate Graham Platner is expected to win the primary and face incumbent Republican Senator Susan Collins, a key race for Senate control. Democrats hope to flip the current Republican majority, while controversies surround Platner. State-level races, including in Nevada, will impact election administration.